Habitat use of Scapteromys tumidus (Rodentia : Cricetidae) in the delta of the Paraná River, Argentina

Cueto, Víctor R.; Cagnoni, Marcela; Piantanida, M.

doi:10.1515/mamm.1995.59.1.25

Cited by 8 publications

(13 citation statements)

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“…Although little is known about the reproduction behaviour of E. miletus , similar reports exist for some other small mammals (Zuk, ; Moller, ; Christe et al ., ). In addition, male voles have larger body sizes, larger home range areas and engage in more activities than females (Marshall, ; Cueto et al ., ; Sánchez López, ). The larger home ranges of males may increase their likelihood of coming into contact with other animals that are infested with ectoparasites.…”

Section: Discussionmentioning

confidence: 99%

Analysis of ectoparasites (chigger mites, gamasid mites, fleas and sucking lice) of the Yunnan red‐backed vole (Eothenomys miletus) sampled throughout its range in southwest China

Peng

Guo

Song

et al. 2015

Medical Vet Entomology

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The Yunnan red-backed vole Eothenomys miletus (Rodentia: Cricetidae) is an endemic rodent species and reservoir host of zoonoses in southwest China. Based on a large host sample (2463 voles collected from 39 localities between 2001 and 2013), a general analysis of four categories of ectoparasite (fleas, sucking lice, chigger mites and gamasid mites) on E. miletus across its entire range of distribution was made. This analysis identified a total of 71 895 ectoparasites belonging to 320 species (30 species of flea, 9 of sucking louse, 106 of gamasid mite and 175 of chigger mite) with a high prevalence (87%), mean abundance (29.19) and mean intensity (33.69). Of the 18 vector species of zoonoses found on E. miletus, the flea Ctenophthalmus quadratus (Siphonaptera: Hystrichopsyllidae) and chigger mite Leptotrombidium scutellare (Trombidiformes: Trombiculidae) were the dominant species; these are the main vectors of zoonoses in China. All of the dominant parasite species showed an aggregated distribution pattern. Male voles harboured more species of parasite than females. Chigger mites represented the most abundant species group on voles and their prevalence was positively correlated with mean abundance (r = 0.73; P < 0.05). As a single rodent species, E. miletus has a high potential to harbour abundant ectoparasites with high species diversity and high rates of infestation. The sex of the vole affects ectoparasite infestation.

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Section: Discussionmentioning

confidence: 99%

Analysis of ectoparasites (chigger mites, gamasid mites, fleas and sucking lice) of the Yunnan red‐backed vole (Eothenomys miletus) sampled throughout its range in southwest China

Peng

Guo

Song

et al. 2015

Medical Vet Entomology

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“…This could be due to the decrease in Calomys cf. laucha representation, commonly associated with the decrease in crops and the increased availability of sites suitable for grassland species such as Akodon azarae (Zuleta et al 1988), and riverside species such as Oligoryzomys nigripes Fornes 1965, Weksler andBonvicino 2005) and Scapteromys aquaticus (Cueto et al 1995b). Studies at habitat scale showed that these species are spatially segregated: C. laucha is most abundant in crop fields while A. azarae and Oligoryzomys flavescens inhabit field edges (Hodara et al 2000).…”

Section: Discussionmentioning

confidence: 99%

Effects of regional context and landscape composition on diversity and composition of small rodent assemblages in Argentinian temperate grasslands and wetlands

Massa

Teta²,

Cueto

2014

Mammalia

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This study aims to describe landscape evolution in two contiguous ecoregions with different land use intensity, to assess changes in small mammal assemblages. Rodent remains in pellet samples from barn owls were used to estimate the attributes of rodent assemblages. Two major biomes were considered in this study, a mosaic of wetlands (Delta and Paraná Islands ecoregion) and a mosaic of grasslands and cultivated fields (Pampa ecoregion). Environmental characterization was based on the analysis of satellite images and weather data. Fourteen rodent species in 28 sampling sites were identified, totaling 7645 prey items. Linear combinations of variables that characterized the landscape explained 66.6% of variation in the composition of rodent assemblages. A positive linear relationship between rodent diversity and the number of different patches was found in the Pampa. Our results suggest that landscape disturbances caused by agricultural intensification favor the increase of generalist and competitively subordinated species. In turn, changes in rodent diversity at the Paraná Delta were negatively associated with the percentage of water-covered area and the number of patches. The hydrological regime of this ecoregion acts as a filter for species establishment, restricting the richness of the rodent assemblages.

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“…For example, the abundance of L. manguinhosi is thought to be closely associated with the abundance of S. aquaticus (Lareschi, 1996; Lareschi et al , 2003), whereas abundances of A. fahrenholzi and O. bacoti in the study area seem to be associated with the abundance of O. rufus (Lareschi et al , 2007). Both these hosts are characterized by wide fluctuations in density across habitats (Cueto et al ., 1995a, 1995b; M. I. Sánchez López, ‘Factores que Limitan la Abundancia de los Roedores Muridos en el Delta del Paraná’, unpublished PhD thesis, National University of Buenos Aires, 1998).…”

Section: Discussionmentioning

confidence: 99%

Determinants of ectoparasite assemblage structure on rodent hosts from South American marshlands: the effect of host species, locality and season

Lareschi¹,

Krasnov

2010

Medical and Veterinary Entomology

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The relative effects of host species identity, locality and season on ectoparasite assemblages (relative abundances and species richness) harboured by four cricetid rodent hosts (Akodon azarae, Oligoryzomys flavescens, Oxymycterus rufus and Scapteromys aquaticus) were assessed across six closely located sites in Buenos Aires province, Argentina. Relative abundances of ectoparasites (14 species including gamasid mites, an ixodid tick, a trombiculid mite, lice and fleas), as well as total ectoparasite abundance and species richness, were determined mainly by host species and to a lesser extent by locality (despite the small spatial scale of the study), whereas seasonal effect was weak, albeit significant. The abundances of some ectoparasites were determined solely by host, whereas those of other ectoparasites (sometimes belonging to the same higher taxon) were also affected by locality and/or season. In gamasids, there was a significant effect of locality for some species, but not for others. In fleas and lice, the effect of locality was similar in different species, suggesting that this effect is related to the characteristic life history strategy.

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Habitat use of Scapteromys tumidus (Rodentia : Cricetidae) in the delta of the Paraná River, Argentina

Cited by 8 publications

References 0 publications

Analysis of ectoparasites (chigger mites, gamasid mites, fleas and sucking lice) of the Yunnan red‐backed vole (Eothenomys miletus) sampled throughout its range in southwest China

Analysis of ectoparasites (chigger mites, gamasid mites, fleas and sucking lice) of the Yunnan red‐backed vole (Eothenomys miletus) sampled throughout its range in southwest China

Effects of regional context and landscape composition on diversity and composition of small rodent assemblages in Argentinian temperate grasslands and wetlands

Determinants of ectoparasite assemblage structure on rodent hosts from South American marshlands: the effect of host species, locality and season

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